Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related technologies today.Carlsbad Caverns National Park, New Mexico by Jim WhiteAuthor: White, Jim, 1882-1946,Language: English, Class: F786: United States local history: New Southwest. Colorado River, Canyon, and Valley, Release Date: Sep 14, 2015